ZOWIE EC2-CW
Full specifications from our spec database — measured values, not marketing copy
- Sensor
- PMW 3370
- Max DPI
- 3.2K
- Polling rate
- 1000 Hz
- Shape
- Ergonomic
- Main switches
- Huano
- Button force
- —
- Suited grips
- Palm / Claw
- Weight
- 77 g
- Dimensions (L×W×H)
- 12.3 × 6.1 × 4.2 cm
- Size class
- Medium
- Connection
- Wireless
- Price
- Not tracked — we don't publish prices we can't verify
Our take 36 pros — and this is the EC shape's first wireless attempt
The EC2-CW is the mouse ZOWIE built when they finally agreed to make the EC series wireless — and in true ZOWIE fashion, they kept everything else exactly the same. The PixArt PMW3370 sensor was already two generations behind when the EC2-CW launched in 2022; ZOWIE deliberately chose it because it's been reliable for years and they had no reason to switch. The 77g weight (medium) is heavier than every modern flagship in our database; ZOWIE has never made weight their priority. The EC2-CW is the same EC shape CS trusted for a decade, made wireless, no software added. It's the older sibling to the EC2-DW.
In our database, the EC2-CW has 36 pros; the EC2-DW that succeeded it has 33. The CS2 sample doesn't currently have a single EC2-CW match — every EC2 user in the CS2 71-player sample is on the newer EC2-DW. That's the practical signal: the EC2-DW is now the EC shape CS uses. The EC2-CW remains in our database because pros in earlier samples (over the broader 2,287-setup population) ran it, but for the next person looking at the EC shape today, the EC2-DW is the answer. The CW stays in the catalogue because ZOWIE ships both, and some users prefer the older PMW3370 sensor's character. The CW's 1000Hz polling rate is capped (no 4K, no 8K), and its battery life at 1000Hz is 70 hours — about 10 hours less than the EC2-DW.
The short version: the EC shape's first wireless attempt, now superseded by the EC2-DW in the CS2 sample. If you want the same ZOWIE no-software philosophy in its original wireless revision, it's still in the catalogue. If you're buying new, the EC2-DW is the better answer in 2026.
Two honest caveats. 77g was 'wireless flagship' in 2022 — by 2026 standards it's a tier heavier (EC2-DW 60g, Razer V4 Pro 49g, Maya X 47g).
And the PMW3370 is an older-generation sensor — ZOWIE themselves didn't keep it on the EC2-DW (replaced by PAW3950). If you care about sensor freshness, the CW doesn't.
Who it's for
- Anyone who wants the EC shape's first wireless revision — the PMW3370 is still good enough for CS.
- ZOWIE veterans — CW is the EC shape's first wireless version, PMW3370 is the sensor old-school ZOWIE customers are familiar with.
- Skeptics of the modern 4K chase. The CW is ZOWIE's own counter-argument: same trusted shell, 1000Hz, and the shape remains the entire product.
Who should skip it
- New buyers — EC2-DW is the same bloodline with upgraded specs, and the right answer in 2026.
- Anyone chasing sub-50g — CW 77g is 17g heavier than every modern ZOWIE wireless ergo.
- Anyone who wants 4kHz / 8kHz polling rate — CW caps at 1000 Hz.
Alternatives to consider
Each is a real pick, not filler — with one concrete reason to choose it over this mouse.
Same shape, 17g lighter, PAW3950, 80h battery, 4kHz. EC2-CW's current successor.
EC2-DW →Razer ergo flagship, 56g, 8kHz, 150h. CW is 'ZOWIE-style ergo', DA V4 Pro is 'Razer-style ergo' — same-track comparison.
DeathAdder V4 Pro →If you don't need wireless, the wired EC2 has the same sensor and similar weight.
EC2 Black →More from ZOWIE
FAQ
Is the EC2-CW just an outdated EC2-DW?
Effectively, yes — the CW is the EC shape's first wireless attempt (2022), and the DW (2024) is its update. The DW is 17g lighter (60g vs 77g), swaps PMW3370 for the PAW3950 sensor, and raises polling from 1000Hz to 4000Hz. Same shape. Our CS2 database shows every EC2 user migrated to the DW. Buy the CW only if you specifically want the original wireless EC hardware.
Is the PMW3370 sensor in the CW still good enough?
For CS-style aiming, yes. The PMW3370 was a 2018-2020-era flagship — it tracks cleanly at 3200 DPI with no smoothing, and 36 pros in our database ran it without complaint. What you give up vs newer sensors: no 4K polling (CW caps at 1000Hz) and higher power draw. If your game is CS2 at 400-1600 DPI, the sensor is not what will hold you back.
Why did ZOWIE ship the CW before the DW?
Two-step wireless transition. The 2022 CW solved the hard problem first — making the iconic EC shape wireless with a stable enhanced receiver. The 2024 DW then modernized the internals: 17g lighter, PAW3950, 4kHz. ZOWIE's style is conservative: prove the wireless works on a trusted shape, then upgrade specs in the next revision. Same pattern as their other DW releases.
Does buying an EC2-CW in 2026 make sense at all?
Only if you specifically want the CW revision. The DW gets you 17g less, a modern sensor and 4x polling in the same shape — our data says the shape is worth buying, but the CW revision specifically is not the version to buy new.
How do you adjust settings on a mouse with no software?
Physical controls only. On the EC2-CW bottom: a button cycles DPI through 400/800/1600/3200, a switch sets polling at 125/500/1000Hz, and a third control adjusts lift-off height. There's also a fast/normal click response toggle. It's a 30-second setup memorized once, which is exactly the point — tournament PCs have no software, so the mouse must not need any.